<template>
  <div class="list" ref="wrapper">
    <div class="content" ref="content">
      <div class="area">
        <div class="title border-topbottom">当前城市</div>
        <div class="buttom-list">
          <div class="buttom-wrap">
            <div class="buttom">{{this.$store.state.city}}</div>
          </div>
        </div>
      </div>
      <div class="area">
        <div class="title border-topbottom">热门城市</div>
        <div class="buttom-list">
          <div class="buttom-wrap"
          v-for="item of hot"
          :key="item.id"
          @click = "handleCityClick(item.name)">
            <div class="buttom">{{ item.name }}</div>
          </div>
        </div>
      </div>
      <div class="area"
       v-for="(item, key)
       of cities" :key="key"
       :ref="key">
        <div class="title border-topbottom">{{ key }}</div>
        <div class="item-list">
          <div
            class="item border-bottom"
            v-for="innerItem of item"
            :key="innerItem.id"
            @click = "handleCityClick(innerItem.name)"
          >
            {{ innerItem.name }}
          </div>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
// eslint-disable-next-line standard/object-curly-even-spacing
import { mapState, mapMutations} from 'vuex'
import BScroll from 'better-scroll'
import ObserveDom from '@better-scroll/observe-dom'
BScroll.use(ObserveDom)

export default {
  name: 'CityList',
  props: {
    hot: Array,
    cities: Object,
    letter: String
  },
  computed: {
    ...mapState({
      currenyCity: 'city'
    })
  },
  mounted () {
    // this.initScroll()
    this.scroll = new BScroll(this.$refs.wrapper, {
      observeDOM: true,
      click: true
    })
  },
  watch: {
    letter () {
      if (this.letter) {
        const element = this.$refs[this.letter][0]
        console.log(element)
        this.scroll.scrollToElement(element)
      }
    }
  },
  methods: {
    handleCityClick (city) {
      // console.log(city)
      // this.$store.commit('changeCity', city)
      this.changeCity(city)
      this.$router.push('/')
    },
    ...mapMutations(['changeCity'])
    // initScroll () {
    //   this.scroll = new BScroll(this.$refs.wrapper, {
    //     observeDOM: true
    //   })
    // }
  }
}
</script>
<style lang="stylus" scoped>
.border-topbottom {
  &:before {
    background: #ccc;
  }

  &:after {
    background: #ccc;
  }
}

.border-bottom {
  &:before {
    background: #ccc;
  }
}

.list
  // overflow: hidden
  overflow-x: hidden;
  position: absolute;
  top: 1.58rem;
  left: 0;
  right: 0;
  bottom: 0;
  .area
    overflow: hidden
    .title {
      line-height: 0.54rem;
      background: #eee;
      padding-left: 0.2rem;
      color: #666;
    }

    .buttom-list {
      padding: 0.1rem 0.6rem 0.1rem 0.1rem;
      overflow: hidden;

      .buttom-wrap {
        float: left;
        width: 33.33%;

        .buttom {
          margin: 0.1rem;
          line-height: 0.5rem;
          height: 0.5rem;
          text-align: center;
          border: 0.02rem solid #ccc;
          border-radius: 0.06rem;
        }
      }
    }

    .item-list {
      .item {
        line-height: 0.76rem;
        padding-left: 0.2rem;
      }
    }

  </style>
